GstBufferPool is a GstObject, add the _get_type function to the types file.
<SUBSECTION Standard>
GST_BUFFER_POOL_CLASS
GST_BUFFER_POOL_CAST
-GstBufferPoolPrivate
GST_BUFFER_POOL
GST_IS_BUFFER_POOL
GST_TYPE_BUFFER_POOL
-gst_buffer_pool_get_type
GST_TYPE_BUFFER_POOL_ACQUIRE_FLAGS
gst_buffer_pool_acquire_flags_get_type
GST_IS_BUFFER_POOL_CLASS
GST_BUFFER_POOL_GET_CLASS
+<SUBSECTION Private>
+gst_buffer_pool_get_type
+GstBufferPoolPrivate
</SECTION>
<SECTION>
#include <gst/gst.h>
gst_bin_get_type
+gst_buffer_pool_get_type
gst_bus_get_type
gst_child_proxy_get_type
gst_clock_get_type